baber/WOPTO huggingface dataset:
Patent DE-3003773-A1 (DE)
Inventor: ZECHER WILFRIED DIPL CHEM DR
IPC: C08G73/06
Filed: 1980-02-02
Abstract: 1. Process for the preparation of hydantoins of the formula  see diagramm : EP0033477,P7,F3  in which R**1 denotes an aliphatic radical with 1-22 C atoms, an aliphatic-aromatic radical with 7-20 C atoms, an aromatic radical with 6-16 C atoms or a heterocyclic radical with 3-10 ring C atoms and 1-3 N, S and/or O atoms in the ring, R**2 and R**3 represent hydrogen or methyl, and R**4 represents an aliphatic radical which has 1-20 C atoms and is optionally substituted by halogen, alkyl and/or aryl groups, a cycloaliphatic radical with 5-12 C atoms, an aromatic radical with 6-12 C atoms and an aliphatic-aromatic radical with 7-20 C atoms, characterised in that a fumaric acid monoester of the formula  see diagramm : EP0033477,P8,F1  in which R**1 , R**2 and R**3 have the abovementioned meaning, is reacted with mono- or poly-isocyanates of the formula R**4 -(NCO)Z , in which R**4 has the abovementioned meaning and Z represents an integer from 1 to 4, at a temperature of 0-450 degrees C.
Patent DE-3004373-A1 (DE)
Title: Valve assembly with observation glass lid - has sealed connection for dirt trap mountings and lid gap
Inventor: HATTING PAUL
IPC: E03F7/00
Filed: 1980-02-06
Abstract: The housing unit, enclosing a chamber, has an opening, or more than one, extending across the direction of flow through the chamber walling, and is closed by a detachable glass cover in a valve assembly permitting observation of the flow of liquid. Retaining mountings are fitted on the chamber (6) walling, in a transverse plane through the opening, providing sealed connection for the edge of a dirt trap (11). In the area of the opening, there is a gap-sealing unit (21), between the glass cover (15) and the adjacent dirt trap edge. This is compact, and combines the functions of observation assembly and dirt trap assembly.
Patent DE-3008586-A1 (DE)
Title: Torsional oscillator resonant frequency or Q=factor measurement - measures impedance of excitation coil or magnetic core
Inventor: KRUEGEL MANFRED ING GRAD
IPC: G01H13/00
Filed: 1980-03-06
Abstract: The method is used for determining the resonant frequency or Q-factor of mechanical torsional oscillators and is applicable to the design of a mechanical filter with several resonators. The method ensures that the resonance is only negligibly affected by the equipment used for measurement. The torsional oscillator (7) is premagnetised in a preferred direction perpendicular to its cylindrical axis on the end surfaces. It is placed in an alternating magnetic field of variable frequency generated in the air gap of a magnetic core (M) so that the magnetisation direction is at an angle to the alternating field. The field is generated by an excitation coil (ES) supplied from a generator (G). The impedance of the coil is measured to enable the resonance to be displayed.
Patent DE-3016308-A1 (DE)
Title: Liquid analysis sample charging system - having improved reliability by using blocking mechanism permitting only one container position
Inventor: BAUMANN ALBRECHT
IPC: G01N35/10
Filed: 1980-04-28
Abstract: A charging system for liquid analysis samples has a computer controlling the passage of appropriately labelled containers past automatic pipettes on a carrier. Charging accuracy and reliability is enhanced using a blocking system which ensures that the containers are only positioned at the correct pipette positions. The containers are placed in line for delivery to the carrier by an additional device with space for an interchangeable holder for elements of the container row for stepwise feeding to the charging positions. The additional device also has a gripping element which only permits each container to be placed in one position in the row of containers whilst blocking all other positions. When a holder is positioned, another step is initiated and the blocking mechanism freed.
Patent DE-3016579-A1 (DE)
Title: Heavy pipe section laying instrument - comprises arm extending downwards from excavator bucket and horizontal pipe support
Inventor: PUSZAMSZIES HARALD
IPC: F16L1/036
Filed: 1980-04-30
Abstract: The instrument lays heavy pipe sections, particularly of concrete, in the ground. It is detachably mounted on the bucket of an excavator or similar machine. It comprises a supporting arm (1) secured at the upper end to the bucket (3) and extending downwards from it, together with a support (2) at the lower end of the arm engaging in the pipe section (17), so as to hold it in a roughly horizontal position. The support can be a straight bar, at right angles to the arm in the working position, and hinging on the arm in a vertical plane.
Patent DE-3016611-A1 (DE)
Title: Multiple hose union connecting to machine - has clamping bushes in body passages gripping inserted hose ends
Inventor: GATZKI HELMUT
IPC: F16L39/02
Filed: 1980-04-30
Abstract: The union connects a large number of hoses to a machine, having a body with passages through it from each of the hoses and forming a sealed joint against the machine. Each hose is inserted by one end in one of the parallel passages through the body, while a clamping bush is inserted from the other passage end, gripping the hose end between its outer surface and the passage wall. A seal for each passage in the machine is clamped between the latter and the end face of the body.
Patent DE-3021217-A1 (DE)
Title: Supercharged four stroke IC engine - uses crankcase space of two cylinders as compressor for alternate cylinders
Inventor: ENGELMANN RICHARD
IPC: F02B75/02
Filed: 1980-06-04
Abstract: The engine has cylinders working in pairs and 360 deg. out of phase. The crankcase space of both cylinders is used to provide supercharging for each cylinder alternately. After compression in the crankcase, air or air/fuel mixture moves past non-return valve (4) into transfer duct (2). It is then fed to the appropriate cylinder, depending on which inlet valve is open. This method of supercharging only requires a gas tight crankcase and obviates the need for a high speed blower or turbocharger.
Patent DE-3022649-A1 (DE)
Title: Magneto:hydrostatic levitation - using non:homogeneous magnetic field with axial symmetry for producing non:linear trajectories
Inventor: COLIN LEONARD DIPL ING
IPC: H02N15/00
Filed: 1980-06-18
Abstract: A method for the magnetohydrostatic levitation and concn. of particles, made of paramagnetic or ferromagnetic materials, to a chosen point inside a cavity uses a nonhomogeneous magnetic field with an axial symmetry which is applied from outside. Such methods are used to direct magnetic liposomes or erythrocytes which are enriched with cancer antidotes towards a tumour inside a patient. The magnetic fields which are applied produce a trajectory along a non-linear path, consisting of a part in the direction towards the axis of symmetry and a part along this axis. To concentrate a particle at a certain point on the axis, the magnetic field is moved with its axis of symmetry cyclically into different positions.
Patent DE-3027183-A1 (DE)
Title: Inductive element two current power supply - has diode control circuit incorporating switch off release delay minimisation
Inventor: GIDAY ZOLTAN
IPC: H01H47/22
Filed: 1980-07-18
Abstract: The relay (10) is connected to the output of one, high current, rectifier bridge (14) which is connected directly to the ac, 220v, supply (13). The bridge (14) contains two thyristors (15) which are turned off (18,19) after the initial switch on, 200ms. The relay (10) is held by a second supply obtained through a transformer (20), connected to the same mains supply (13), and a further rectifier bridge (21). The holding bridge (21) is controlled by a triac (22) coupled through a timing circuit to the switch on bridge (14) thyristor control (15,18,19). After switch off the discharge current is controlled by the discharge diode (28) and opposing zener (27) together with the parallel connected varistor (29) and capacitor (30) which are all connected between bridge (14,21) supplies, on the output of the holding bridge (21) and across the relay (10).
Patent DE-3035951-A1 (DE)
Title: Automatic traveller for racing dinghy - has release blocks operated by wedges on sheet carriage
Inventor: OCHSEN PETER
IPC: B63H9/10
Filed: 1980-09-24
Abstract: The main sheet block is secured on a carriage (3) mounted with limited movement in a slot in the centre of a support board. The board is linked to each side of the boat by rope loops over captive rollers (4) each side of the board and with clamping wedges (7) to hold the ropes. Release wedges (6) on the carriage open the jaws to allow the main sheet to move to one side of the boat during tacking. The automatic traveller enables the boat to tack without having to adjust the main sheet so that a single-handed operation is possible. The double jaws operate in sequence so that the traveller moves one way only and is securely locked after tacking.
Patent DE-3046300-A1 (DE)
Title: Hydraulic control for tailgate hoist - has common block mounting and interlocked control
Inventor: PFEIFFER GERD
IPC: B60P1/44
Filed: 1980-12-09
Abstract: The tailgate hoist is lifted by a pair of lifting rams and tilted by a pair of tilt rams. The hydraulic control valves are mounted in a common block and are operated by solenoids. A common fluid input, a common dump port and two sets of outlets are the only hydraulic connections to the block. The action of the rams is interlock so that the tailgate follows a set sequence of operations. A third set of rams (12) can be included to stabilise the vehicle on the ground prior to tailgate operation.
Patent DE-3047302-A1 (DE)
Title: Spill-way dam overflow - through mixing chamber and diffusor for creation of flotation zone in tail race
Inventor: ISKRA ANTON LEONTJEVIC
IPC: C02F3/12
Filed: 1980-12-16
Abstract: A spillway dam with an overflow over its crest is fitted with a vertical mixing chamber which starts with a water flow splitter and a distributor grid and terminates in a horizontal diffusor. Air intake openings near the grid ensure the formation of a flotation zone at the exit from the diffusion which extends up to a froth breaker in the tail race. This increases the air absorption of the part of the water passing through the mixing chamber and absorbs the kinetic energy of the water. It also purifies the water by removal of all oxidisable impurities.
Patent DE-3049185-A1 (DE)
Title: Remotely-controlled subscriber disconnection circuit - provides recorded message for incoming calls and stores caller message
Inventor: VOIGT WOLFGANG
IPC: H04M3/52
Filed: 1980-12-24
Abstract: The subscriber disconnection circuit is remotely controlled to disconnect the subscriber line (TAL) from the subscriber terminal and to couple any calls placed to the subscriber to a common playback device providing a recorded message. When the subscriber line (TAL) is disconnected from the subscriber terminal any incoming messages for the subscriber are entered together with time information from a common time source (G) in a store (SP) assigned to the subscriber terminal. This store (SP) is pref. identical to that holding the call number which is entered to actuate the disconnection circuit.
Patent DE-3049362-A1 (DE)
Title: Oil burner water vapour generator - has float valve maintaining constant level in stainless steel water tank
Inventor: SCHAUSBERGER RICHARD
IPC: F23L7/00
Filed: 1980-12-29
Abstract: The water-vapour generator increases the heating flame of an oil- or gas-burner. It consists of a tank of stainless steel or non-decaying plastics material. A float-controlled valve (101) maintains a constant level in the tank, while a pressure pipe ends below the water surface and there is a feed pipe above it, leading via a suction pipe to the combustion chamber in the boiler above the pressure-operated burner flame.
Patent DE-3102834-A1 (DE)
Title: Mixing tool
Inventor: FEGER HERBERT
IPC: B01F7/00
Filed: 1981-01-29
Abstract: In a mixing tool for abrasive materials to be mixed, whose core consists of a rigid top part and an elastic bottom part, said bottom part is implemented by means of a multiplicity of elastic fingers (3) whose second ends are wound in a spring-like manner round a bar (4) forming the rigid top part. Mixing tools of this type are preferably used in concrete mixing machines.
Patent DE-3106636-A1 (DE)
Title: Camera, in particular a movie camera or video camera
Inventor: FIELD ROGER C
IPC: G03B11/04
Filed: 1981-02-23
Abstract: The invention provides a camera, in particular a movie camera or video camera, having an interchangeable lens and fixed focal length or an interchangeable lens or permanently mounted zoom lens and a tubular sunshade with a fixed angular aperture, which, in order to render it possible to achieve a fade-out effect of high accuracy quickly and simply for any possible focal length, has a mask which can be set as a function of the focal length of the lens, delimits the angle of incidence of the light onto the sunshade, can be displaced axially in the sunshade and is arranged in front of the lens.
Patent DE-3109876-A1 (DE)
Inventor: ROTHENBERGER GUENTER
IPC: B08B9/02
Filed: 1981-03-14
Abstract: The invention concerns a pipe cleaning machine for rotating cleaning spirals of different diameters. To adapt the container for the cleaning spiral and the machine to cleaning spirals of different diameters with a minimum of accessories, the container for the cleaning spirals is made in a known manner in the form of a guide hose, but the inside diameter of the guide hose and of its coupling to the machine is equal to or greater than the inside diameter of the hollow shaft parts of the machine which receive the cleaning spirals and a collet for adapting the machine and the guide hose to different cleaning spiral diameters is removably mounted in the coupling.
Patent DE-3111801-A1 (DE)
Inventor: ROLLINGER FERDINAND
IPC: H02B1/18
Filed: 1981-03-25
Abstract: 1. A device for mechanically holding and electrically connecting installation apparatus, such as conduction circuit breakers, earth-leakage circuit breakers, fuses and the like, on or to bus bars (21) which possess an essentially plate-shaped basic body (1) of on an insulating material and which constitutes the carrier of fork-like contacts (3) which can be placed onto the bus bars (21) and are electrically connected to first ends of connecting rails (7) secured to the plate-shaped basic body (1), and at the second ends of which contacts, in the boundary region of the basic body (1), terminal points are arranged for electrical connection to the installation apparatus (25) to be held, characterised in that the plate-shaped basic body (1) and each first end of the connecting rails (7) have a respective recess (2, 8) in the region of the fork-shaped contact (3) which is assigned to this end, which recess is penetrated by two contact pieces forming the fork-shaped contact (3), that a tilting projection (5) is centrally formed on the contact pieces, which tilting projection supports the contact pieces (4) against one another, that adjacent to these tilting projections (5), on the side of the contacts (3) remote from the bus bars (21), there is arranged between the contact pieces a spring (6) which forces apart the contact pieces (4), fixes the contact pieces (4) in the recess (8) of the assigned connecting rail (7), and produces contact pressure to the bus bars (21), and that the plate-shaped basic body (1) is the carrier of at least one profile rail (13) which serves to fix the installation apparatus.
Patent DE-3113367-A1 (DE)
Title: Ski-stopper (ski-brake)
Inventor: JUNGKIND ROLAND
IPC: A63C7/10
Filed: 1981-04-02
Abstract: In the case of a ski-stopper with a bar coupled pivotably on both sides of the ski, it is proposed to arrange the pivot axes of each free end of the bar in each case angled with respect to the longitudinal axis of the ski so that the bar, which is composed of elastic material, is subjected to a spring force when it is pivoted from the stop position into the travel position. As a result, a separate spring for actuating the bar is dispensed with.
Patent DE-3118315-A1 (DE)
Title: Viewing lips with variably indicated U lips for dentists
Inventor: HOERAUF KARL-RODERICH
IPC: A61C19/10
Filed: 1981-05-08
Abstract: 3118315 withdrawn.
Patent DE-3121530-A1 (DE)
Title: Radial-piston machine, in particular spherical-piston pump
Inventor: BUDECKER LUDWIG
IPC: F04B1/04
Filed: 1981-05-29
Abstract: In a radial-piston machine, in particular a spherical-piston pump, an outer stator and an inner rotor are provided which is rotatable on a control journal provided with inflow and outflow ducts. The rotor has at least one radial bore in which a spherical piston, consisting of an outer sphere and an inner cylindrical sleeve can be displaced. The radially inner end of the sleeve can be connected to the high-pressure side of the machine. The radially outer end of the sleeve has an elastic sealing lip in the circumferential direction which in each operating state is in sealing contact with the rotor bore in which sleeve, sealing lip and sphere are accommodated. The sleeve accommodates the sphere in the manner of a socket and is designed to be axially symmetric with a central passage. The external diameter of the sleeve may correspond to that of the sphere. In operation, the operating pressure of the machine and, at higher rotor speeds, the centrifugal force, forces the sealing lip against the outer sphere and thus spreads it apart, resulting in an increase in the sealing force between lip and rotor bore. The invention is particularly suitable for high-pressure pumps and facilitates manufacture of the cylindrical sleeve, as the cylindrical outer shell of the sleeve can be manufactured with wide tolerances without significantly impairing the sealing effect overall. If the material of the sleeve is chosen appropriately (large thermal coefficient of expansion compared to the rotor), elevated operating temperatures can be utilised in order to provide good areal sealing between the cylindrical outer shell of the sleeve and the enclosing rotor bore.
Patent DE-3122760-A1 (DE)
Title: Sheet-gripper device for printing machines
Inventor: JUNKER FRANK DR ING
IPC: B41F21/10
Filed: 1981-06-09
Abstract: The invention relates to a sheet-gripper device. The object of the invention consists in arranging the gripper pad so as to be self-locking and rapidly fixable in the precise position on a sheet-gripper device for printing machines. This object is achieved in that the gripper pads provided with first recesses are arranged on the gripper pad strip so that they can be fixed in the precise position by means of an attachment element via the eccentricity, arranged radially relative to the cylinder, of the first recesses relative to the second recesses of the gripper pad strip. <IMAGE>
Patent DE-3123204-A1 (DE)
Title: Sampling-type measuring circuit
Inventor: MENLOVE ROBERT PETER
IPC: G01R19/04
Filed: 1981-06-11
Abstract: A sampling-type measuring circuit is described which provides for extremely accurate amplitude measurements at particular points on a complex wave train containing radio-frequency components. Such measurements are required in connection with television wave train calibration instruments. A sampling circuit having extremely short sampling switching times is used so that an associated storage capacitor is continuously charged in discrete steps until the level of the sampled wave train amplitude is reached. A voltage drop across the storage capacitor is compensated for by feedback devices and, at the same time, changes in the bias characteristics of the sampling circuit are corrected.
Patent DE-3128122-A1 (DE)
Title: Gymnastic appliance, specifically a vaulting horse
Inventor: WITTE ROLAND
IPC: E05B65/08
Filed: 1981-07-16
Abstract: In a vaulting horse which is composed of a plurality of stackable frames of mutually identical outline with stacking projections arranged in the frame corners, the topmost frame having a cover which is padded on the outside, in order to increase the reliability of stacking it is proposed that at least two bolts (5), distributed over the periphery, be assigned to each stackable frame (2), opposite to which bolts are bolt keepers (6) on the respectively adjacent frame, the mutually identical bolts (5) and bolt keepers (6) on all frames being positioned at mutually identical positions, recessed into the frame and arranged to end completely flush with the outsides thereof.   <IMAGE>
Patent DE-3128309-A1 (DE)
Title: Rotary internal combustion engine
Inventor: SCHMIDT WALTER
IPC: F01C21/08
Filed: 1981-07-17
Abstract: In a cylindrical combustion chamber (10) - mounted eccentrically to the drive shaft (9) - four rotating pistons (1-2-3-4) offset by 90 DEG are hydraulically interconnected, which - flexibly adjusting to the front end of the piston orbit (21) - are guided by a piston guide cylinder (12) connected to the drive shaft (9) and are moved circularly in the combustion chamber (10) so that between two rotating pistons a large volume is produced at the bdc and the smallest volume at the tdc. The fresh gases, compressed by an identically formed compression chamber (11) with eight rotating pistons, are forced by way of the transfer port (37) between two rotating pistons, further compressed at the tdc and fed to the combustion chamber (39) where they are ignited. The combustion pressure moves the rotating piston to the exhaust port (41) and acts on a turbine wheel disc (44). After a useful effect of 410 DEG  the old gases are discharged, secondary air is simultaneously forced through the port (45) between the pressure blades (42) and the combustion gases fed to the exhaust port (41). By means of an electronic control unit (51) the hydraulic adjustment pressure of the oil supply (31) to the dependent rotary pistons is interrupted so that instead of four only two combustion processes occur and in overrun conditions the adjustment pressure to all rotating pistons is interrupted. <IMAGE>
Patent DE-3129221-A1 (DE)
Title: Relay having a base plate which carries a connecting plug
Inventor: HOLLERUNG RAIMUND
IPC: H01H50/44
Filed: 1981-07-24
Abstract: In the case of a relay, pegs (pins) are integrally formed on the flange of a coil former, on which pegs the ends of the coil winding are fixed by way of assistance such that they cross a contact point of an associated connecting plug.
Patent DE-3132050-A1 (DE)
Title: Shaft bearing arrangement, in particular in motor-driven soil-cultivating equipment
Inventor: DOERR MANFRED ING GRAD
IPC: A47L11/16
Filed: 1981-08-13
Abstract: The invention relates to a shaft bearing arrangement, in particular in soil cultivating equipment, with individual elements (14, 15) which are supported on spherical surfaces (16) and have bearing bores for the shaft (8). To simplify the structure and assembly of the bearing arrangement, the invention proposes that the individual supporting elements (14, 15) should be located on both sides of a retaining clip (23) for the central web (27) of a retaining strap (26) composed of elastic material which is provided at the opposite ends of the web (27) with rings (28), the inner edge (29) of which forms projections (30) which rest on the spherical surface (16). <IMAGE>
Patent DE-3139719-A1 (DE)
Inventor: MOELLER GERALD DR RER NAT
IPC: G01N33/52
Filed: 1981-10-06
Abstract: 1. Process for the determination of the activity of chymotrypsin or trypsin in faeces by measurement of the velocity of the splitting of a suitable substrate by a faecal suspension in aqueous or aqueous-organic medium, characterised in that one suspends the faeces in the presence of a surface-active agent.